Even kids can get involved in science! Ecologist Dr. Neeti Bathala and Jennifer Keats Curtis collaborate to bring us the story of these adventurous citizen scientists. Leena and her mom volunteer each summer to count the horseshoe crabs that visit their beach. With their dog Bobie at their sides, the duo spends a night on the shore surveying horseshoe crabs who have come to mate and lay eggs. Readers will learn valuable facts about these ancient animals and how they can get involved in the effort to conserve horseshoe crabs.
In beautifully detailed photographs, Mary Holland captures the first few months of a baby barred owls life. The huge eyes and fluffy feathers will steal the hearts of readers as they learn how barred owl parents ready their young owlets for the big world outside the nest. Follow along as Otis learns to eat, fights with his sister, and prepares for flight.
Con fotografías hermosamente detalladas, Mary Holland capta los primeros meses de vida de un búho. Los grandes ojos y las esponjosas plumas se robarán los corazones de los lectores mientras aprenden cómo es que los padres de los búhos carabo norteamericanos preparan a sus críos para el gran mundo fuera del nido. Acompaña a Otis mientras aprende a comer, pelea con su hermana y se prepara para alzar el vuelo.
Jovita se está preparando para una noche fascinante: ¡es hora de contar murciélagos! Los murciélagos siempre han sido una bienvenida presencia durante los veranos en la granja de la familia. Pero, a través de los años, los números han disminuído ya que muchos de ellos, han contraído el síndrome de la naríz blanca en esa área. Jovita y su familia cuentan los murciélagos y envían los números a los científicos que los estudian para ver si la población de los murciélagos se puede recuperar. En una noche de verano, la familia se mueve muy sigilosamente sobre el terreno para observar el cielo y poder contar a los visitantes a su granja
When a young girl finds a sparkly rock buried in the dirt and discovers that it cleans to a beautiful quartz crystal, she is fascinated and becomes Julie the Rockhound. Join Julie as her dad shows her how to dig for minerals and explains the wonders of crystal formation. Combining clever wordplay with earth science, young readers learn about Earth's most abundant mineral "treasure."
Alexa and the other children at her escuela in Costa Rica have a special project: they are raising American Crocodiles. She names her croc Jefe, which means "boss," because he seems to be in charge of all the other babies. Alexa brings him chicken and frogs to eat, and writes about his progress in her diary. Soon, her little hatchling is as big as a loaf of bread. He has grown into a juvenile and it is time for Alexa to say goodbye and for Jefe to return to the wild.
Can you smell with your feet? Do you dig your claws into a rivers muddy bank to climb up and bask in the sun? Animals legs are different from humans in so many ways! Find out why strong talons suit a raptor, or webbing is perfect for water dwellers as author Mary Holland continues her photographic Animal Anatomy and Adaptations series by exploring the ways insects, amphibians, reptiles and mammals make their way in the world.
Fall is here and Kate is determined to save her flowers from the winter cold. Mom shows her how to scoop the flowers out of the ground, transplant them into pots, and give them water. Kate pots a couple flowers . . . and then some moreand a few more. With Mom distracted on the phone, Kate has filled the house with flowers, but Dads sneezes mean the flowers have to go! Kate realizes she needs to find a new place for her flowers to spend the winter, but where?
Dena loves using magnets to perform magic tricks for the kids at the pool. When Enrique arrives in town, he doesnt like that Dena is fooling the others. He gives her a century-old treasure map and Dena uses her compass and tools to plot the location of the treasure. To her surprise, the treasure is not where it should be! What could cause her compass to lead her off course? When she discovers the answer, will Dena keep fooling the other kids with magic tricks or will she help them learn about magnetism and the earths shifting magnetic poles?
Desde reducir incendios hasta plantar semillas, un animal es el verdadero héroe que mantiene la sabana Africana en balance. Los elefantes cavan para encontrar sal que otros animales lamen, sus profundas pisadas recolectan agua que las pequeñas criaturas beben y ellos se comen a los árboles jóvenes para evitar que el bosque sobrepase a las praderas. En cada estación, los elefantes están ahí para proteger a la sabana y a sus residentes, pero ¿qué pasaría si los elefantes hubieran existido sólamente una vez? Leamos juntos para descubrir la importancia del rol que estas especies clave juegan en la sabana y explora qué pasaría si los elefantes desaparecieran.
Los tiburones y los delfines tienen cuerpos en forma de torpedos con aletas en sus espaldas. Ellos se deslizan a través del agua para atrapar a sus presas con sus dientes filosos. Pero a pesar de sus similitudes los tiburones y los delfines pertenecen a diferentes especies de animales: uno es un pez y obtiene el oxígeno del agua y el otro es un mamífero y obtiene el oxígeno del aire. El marino Kevin Kurtz guía a los lectores jóvenes para comparar y contrastar a esos depredadores del océano a través de impresionantes fotografías y con un texto simple, y real
Encontrarse cara a cara con la vida salvaje es emocionante, pero esto, no es fácil. Cuando Camilo viene a visitar a su amiga Malena, él no puede esperar a ver toda la vida salvaje que el bosque tiene que ofrecerle—y está decepcionado cuando todo lo que ve, son unas cuantas aves. Juntos, los chicos salen de viaje en una caminata y encuentran abundantes señales de animales a lo largo del camino. Por medio de la observación y de su conocimiento del comportamiento animal, Malena ayuda a Camilo a aprender lo que significa cada señal: alguien ha estado aquí, alguien lo ha hecho.
Todos los mamíferos tienen ciertas características que los hacen diferentes de otros tipos de animales. Pero algunos mamíferos viven sobre tierra firme y otros, viven en el agua—cada uno se adapta a su medio ambiente. Los mamíferos que viven sobre la tierra firme pueden respirar el aire a través de la naríz, mientras que los mamíferos que viven dentro del agua pueden respirar mediante un orificio nasal. Explora las características que definen a ambos mamíferos y compara y contrasta cómo se manifiestan estas características en los mamíferos terrestres y en los mamíferos acuáticos.
Sharks and dolphins both have torpedo-shaped bodies with fins on their backs. They slice through the water to grab their prey with sharp teeth. But despite their similarities, sharks and dolphins belong to different animal classes: one is a fish and gets oxygen from the water and the other is a mammal and gets oxygen from the air. Marine educator Kevin Kurtz guides early readers to compare and contrast these ocean predators through stunning photographs and simple, nonfiction text.
From slowing wildfires to planting seeds, one animal is the true superhero that keeps the African savanna in balance. Elephants dig to find salt that other animal lick, their deep footprints collect water for small creatures to drink, and they eat young trees to keep the forest from overtaking the grasslands. In every season, the elephants are there to protect the savanna and its residents but what would happen if the elephants were only once upon a time? Read along to discover the important role this keystone species plays in the savanna and explore what would happen if the elephants vanished.
All mammals share certain characteristics that set them apart from animal classes. But some mammals live on land and other mammals spend their lives in watereach is adapted to its environment. Land mammals breathe oxygen through nostrils but some marine mammals breathe through blowholes. Compare and contrast mammals that live on land to those that live in the water.
Spotting wildlife is a thrill, but its not easy. When Cole comes to visit his friend Helena, he cant wait to see all the wildlife the forest has to offer and is disappointed when all he sees are a few birds. Together the kids set out on a hike and encounter plenty of animal signs along the way. Through observation and her knowledge of animal behavior, Helena helps Cole learn what each of the signs means: something had been there; something had done that.
How do some young animals know what to do and how to do it? Does someone teach a caterpillar what to eat? Who gives a baby shark swimming lessons? Sometimes young animals learn things from their parents, but other times they just know! Explore animal instincts through engaging text and fanciful illustrations.
A retelling of the classic story with a math twist. Henry Hare was always bragging about how fast he was. One day he challenges Tessie Tortoise to a mile-long race up the hill. Henry leaps ahead for the first eighth of a mile. As Tessie approaches, he bounds ahead again. Fractions and distance measurements mark their progress as Tessie and Henry race to the finish line.
The animals of the South Sea are hungry. But who is hungrier than all of the rest? The kicking krill may swarm and the blue cod are out hunting for dinner, but neither is fierce enough to be tops in this habitat. Could it be the lurking sharks, pointy-tailed rays or the toothy barracuda? Dive into this rhythmic text to discover who is at the top of this food chain.
From the first light of dawn until the sun sets at night, the savanna is alive with noise. A lion roars in the early morning, a young baboon shrieks at noon, and a young mouse squeals at dusk. What are the animals saying and why? Animals communicate in many ways; explore the thriving African savanna as its inhabitants talk to one another throughout the course of a day
What makes a frog an amphibian but a snake a reptile? Both classes may lay eggs, but they have different skin coverings and breathe in different ways. Pages of fun facts will help kids identify each animal in the class like a pro after reading the fourth book in Arbordales Compare and Contrast series. Similar to Polar Bears and Penguins, Clouds and Trees; Amphibians and Reptiles uses stunning photographs and simple non-fiction text to get kids thinking about the similarities and differences between these two animal classes.
¿Qué es lo que hace a una rana un anfibio y a una serpiente un reptil? Ambas clases pueden poner huevos pero tienen diferentes tipos de piel y respiran de diferente manera. Páginas con hechos divertidos ayudarán a los niños a identificar a cada animal en el salón de clases como si fueran todos unos profesionales una vez que hayan leído el cuarto libro de la serie de Comparación y Contraste de Arbordale. Al igual que en los libros de Osos Polares y Pinguinos, Nubes y Árboles, en Anfibios y Reptiles se utilizan impresionantes fotografías y textos simples de no ficción para hacer que los niños piensen sobre las diferencias y similitudes entre ambas clases de animales
La pequeña Lina se aparta de su madre mientras persigue a un sapo allá por el río. Cuando el hielo del glaciar se quiebra, el agua estrenduosa se la lleva rodando y retumbando. Ahora está sola y la cría mamut lucha por sobrevivir. Y, debe esconderse al pasar por delante de los leones de las cavernas, osos, gatos dientes de sable, e inclusive, algunos de los primeros humanos. Además de agotada y temerosa, se tiene que resguardar del clima tormentoso mientras lucha por regresar con su manada. ¿Cómo puede encontrarlos? ¿Podrá regresar con ellos algún día?
Haz un viaje alrededor del mundo para descubrir una amplia variedad de formaciones terrestres y características geológicas de la Tierra a través del verso rítmico de Esta tierra, es tu país. En el viaje encontrarás planicies, mecetas y colinas. Descubre cómo un arroyo puede crear un cañón o cómo la lava forma un archipiélago. Lee en voz alta y descubre nuevo terreno al pasar de cada página.
